Ok PCB milled now how to drill the holes ?

[Fivetide]

gerber files are created by your pcb design software.....what are you using to design the pcb? (I'm not familiar with art cam...cambam has a free trial period & can import gerbers)

I'm using eagle for PCB , ah ok I'll give cambam a trial see if it can do the PCB's thanks Hank

[C_Bubba]

If your using Eagle, you can use pcbgcode.ulp to create the necessary drill files as well as the router isolation files.